Similar to silica tridymite, the corresponding AlPO4 analogue shows a sequence of displacive phase transitions at elevated temperatures...
Keywords: Tridymite, Incommensurate modulation, Displacive phase transition, Rietveld refinement, Powder diffraction structure analysis
05/2007 | Zeitschrift für Kristallographie, Oldenbourg WissenschaftsverlagIntensive researches on specific treatments of radioactive cesium, occurring in high level nuclear wastes, are in progress in France...
Keywords: Hollandite, Incommensurate modulation, Crenel function, q wave vector modulation, Single crystal structure analysis
08/2007 | Zeitschrift für Kristallographie, Oldenbourg Wissenschaftsverlag